申请人:Takahashi Toshiaki
公开号:US20140034884A1
公开(公告)日:2014-02-06
A chromene compound which develops a color of a neutral tint and has little initial coloration, high double peak characteristic and high color development sensitivity, rarely experiences the reduction of color optical density though it has high fading speed, is excellent in the durability of photochromic properties and can dissolve in a monomer composition which will become a substrate for optical articles in a high concentration, and a photochromic curable composition comprising the chromene compound and polymerizable monomers.
The chromene compound is represented by the following formula (1).
(wherein R
3
at the 11-position is a second sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group, heteroarylthio group, sulfonyl group and sulfinyl group, R
1
and R
2
at the 6-position and the 7-position are a combination of an aryl group or a heteroaryl group and an electron donating group having a Hammett constant σ
p
of −0.1 or less, or R
1
and/or R
2
is a first sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.).
一种含有色素的咔喱环化合物,具有中性色调和较小的初始着色度,高双峰特性和高颜色发展灵敏度,即使具有高褪色速度,也很少经历颜色光密度的降低,具有耐光性的优异性能,并且可以在单体组成物中高浓度溶解,用作光学制品的基板,以及包含该咔喱环化合物和可聚合单体的光致变色固化组合物。该咔喱环化合物由以下式(1)表示。(其中,在11位的R3是来自以下基团的第二个含硫取代基:硫醇基,烷基硫基,烷氧基烷基硫基,卤代烷基硫基,环烷基硫基,芳基硫基,杂环芳基硫基,磺酰基和亚磺酰基,在6位和7位的R1和R2是芳基或杂环芳基和具有Hammett常数σp小于-0.1的电子供体基团的组合,或者R1和/或R2是来自以下基团的第一个含硫取代基:硫醇基,烷基硫基,烷氧基烷基硫基,卤代烷基硫基,环烷基硫基,芳基硫基和杂环芳基硫基。)